【单选题】Having taken our seats,_______________________.
A.
the professor began the lecture
B.
the lecture began soon
C.
we were attracted by the lecture soon
D.
the bell announced the beginning of the lecture
【判断题】( ) 传统菜肴贵妃鸡翅和东坡肉都是用焖的方法烹制而成的。
【单选题】No sooner ___than it began it began to rain heavily.
【简答题】A.1523. B.1917. C.1919. D.1115.
【单选题】The pianist began to play and the girl in red began to sing ____the music.
【判断题】如果一种物品的价格下降,而且这种物品是正常物品,那么收入效应引起该物品需求量增加。
【单选题】以下关于 switch 语句和 break 语句的描述中,正确的是
A.
在 switch 语句中必须使用 break 语句。
B.
break 语句只能用于 switch 语句中 。
C.
在 switch 语句中,可以根据需要使用或不使用 break 语句。
D.
break 语句是 switch 语句的一部分。
【单选题】Science began to develop rapidly when man laid _____ his wrong beliefs and began to seek true explanations .
【单选题】In 1917, Russia was in chaos. The economy was collapsing, there were food shortages and the country was suffering heavy losses in the World War I. Inevitably, people began to lose faith in their ruler...